[Bug c++/100198] ICE: unexpected expression 'E' of kind template_parm_index

[hewillk at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100198

--- Comment #2 from 康桓瑋 <hewillk at gmail dot com> ---
(In reply to Richard Biener from comment #1)
> would be nice if you'd hinted on whether you think your testcases are valid
> C++ or not.  guessing invalid here

Oops, I should do that, this is a valid code.

https://godbolt.org/z/Kx67MP85f